PubOrder is a POS written in particular for bar/pub owners, and a Personal Waiter for their customers to let them order fast from their mobile devices. For client side, the app does not require a download (it can be run in the browser), it does not require a login or even internet access, and is ad-free. Anyhow it includes app for Android and IOS available on Google Play and Appstore, for the customer who does preffer that.